Google's machine translation is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.

Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.

Jan Kubiš, having previously been an active member of Orel, started his military career as a Czechoslovak army conscript on 1 November 1935 by 31st Infantry Regiment "Arco" in Jihlava. After passing petty officer course and promotion to corporal, Kubiš served some time in Znojmo before being transferred to 34th infantry regiment "Marksman Jan Čapek" in Opava, where he served at guard battalion stationed in Jakartovice. Here, Kubiš reached promotion to platoon sergeant.

In 1941, Kubiš was dropped into Czechoslovakia as part of Operation Anthropoid, where he died following the successful assassination of Reinhard Heydrich. His remains were buried secretly in a mass grave at the Ďáblice cemetery in Prague. Since this was unknown after World War II, Karel Čurda, the member of their squad who betrayed them to the Nazis, was coincidentally also buried at the cemetery. However, in 1990 mass graves were excavated and a memorial site with symbolic gravestones was established instead.[3] In 2009, a memorial was built at the place of the attack on Heydrich.

Jozef Gabčík and Jan Kubiš were airlifted along with seven soldiers from Czechoslovakia’s army-in-exile in the United Kingdom and two other groups named Silver A and Silver B (who had different missions) by a Royal Air ForceHalifax of No. 138 Squadron into Czechoslovakia at 10pm on 28 December 1941. In Prague, they contacted several families and anti-Nazi organizations who helped them during the preparations for the assassination.[4]

On 27 May 1942, Heydrich had planned to meet Hitler in Berlin. German documents suggest that Hitler intended to transfer Heydrich to German occupied France, where the French resistance was gaining ground.[5] Heydrich would have to pass a section where the Dresden-Prague road merged with a road to the Troja Bridge. The junction, in the Prague suburb of Libeň, was well-suited for the attack because motorists have to slow for a hairpin bend. At 10:30 AM, Heydrich proceeded on his daily commute from his home in Panenské Břežany to Prague Castle. Gabčík and Kubiš waited at the tram stop on the curve near Bulovka Hospital in Prague 8-Libeň. As Heydrich’s open-topped Mercedes-Benz neared the pair, Gabčík stepped in front of the vehicle, trying to open fire, but his Sten gun jammed. Heydrich ordered his driver, SS-Oberscharführer Klein, to stop the car. When Heydrich stood up to try to shoot Gabčík, Kubiš threw a modified anti-tank grenade at the vehicle, and its fragments ripped through the car’s right-rear fender, embedding shrapnel and fibres from the upholstery into Heydrich’s body, even though the grenade failed to enter the car. Kubiš was also injured by the shrapnel. Heydrich, apparently unaware of his shrapnel injuries, got out of the car, returned fire and tried to chase Gabčík but soon collapsed. Klein returned from his abortive attempt to chase Kubiš, and Heydrich ordered him to chase Gabčík. Klein was shot twice by Gabčík (who was now using his revolver) and wounded in the pursuit.[6][7]

A Czech woman went to Heydrich's aid and flagged down a delivery van. Heydrich was first placed in the driver's cab, but complained that the van's movement was causing him pain. He was placed in the back of the van, on his stomach, and taken to the emergency room at Na Bulovce Hospital.[8] Heydrich had suffered severe injuries to his left side, with major damage to his diaphragm, spleen, and lung. He had also fractured a rib. Dr. Slanina packed the chest wound, while Dr. Walter Diek tried unsuccessfully to remove the splinters. He immediately decided to operate. This was carried out by Drs. Diek, Slanina, and Hohlbaum. Heydrich was given several blood transfusions. A splenectomy was performed. The chest wound, left lung, and diaphragm were all debrided and the wounds closed.[8] Himmler ordered Dr. Karl Gebhardt to fly to Prague to assume care. Despite a fever, Heydrich's recovery appeared to progress well. Dr. Theodor Morell, Hitler's personal physician, suggested the use of sulfonamide (a new antibacterial drug), but Gebhardt, thinking Heydrich would recover, refused.[9] On 2 June, during a visit by Himmler, Heydrich reconciled himself to his fate by reciting a part of one of his father's operas.

Heydrich slipped into a coma after Himmler's visit and never regained consciousness. He died on 4 June, probably around 04:30. He was 38. The autopsy concluded that he died of sepsis. Heydrich's facial expression as he died betrayed an "uncanny spirituality and entirely perverted beauty, like a renaissance Cardinal," according to Bernhard Wehner, a Kripo police official who investigated the assassination.[10]

Bullet-scarred window of the Church of St. Cyril and St. Methodious in Prague where Kubiš and his compatriots were cornered.

Kubiš and his group were found on 18 June in the Church of St. Cyril and St. Methodious in Resslova Street in Prague. In a bloody battle that lasted for two hours, Kubiš was wounded and died shortly after arrival at the hospital.[11] The other parachutists committed suicide to avoid capture after an additional four-hour battle with the SS.[12]